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Irreversible visual sensing of humidity using a cholesteric liquid crystal

By A Saha, Y Tanaka, Y Yang Han, CWM Cees Bastiaansen, DJ Dirk=Dick Broer and RP Rint Sijbesma

Abstract

Irreversible optical sensing of humidity by a doped cholesteric liquid crystal is achieved by using a thin film of nematic host E7 with a binaphthylorthosilicate ester as dopant (guest). The film changes its color from blue (to green to orange to red) to colorless when exposed to humidity as the dopant is hydrolyzed

Publisher: 'Royal Society of Chemistry (RSC)'
Year: 2012
DOI identifier: 10.1039/c2cc16934g
OAI identifier: oai:library.tue.nl:740196
Provided by: Repository TU/e
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